Removed unused class

core/src/mindustry/world/blocks/units/ControlCore.java

@@ -1,10 +0,0 @@
-package mindustry.world.blocks.units;
-
-import mindustry.world.*;
-
-public class ControlCore extends Block{
-
-    public ControlCore(String name){
-        super(name);
-    }
-}

core/src/mindustry/world/blocks/units/DroneCenter.java

@@ -15,6 +15,7 @@ import mindustry.world.*;
 
 import static mindustry.Vars.*;
 
+//TODO remove
 public class DroneCenter extends Block{
     public int unitsSpawned = 4;
     public UnitType droneType;